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> Thermo-Hydraulic Phenomena Subcommittee Meeting
ADVISORY COMMITTEE ON REACTOR SAFEGUARDS
THERMAL-HYDRAULIC PHENOMENA SUBCOMMITTEE MEETING:
DUANE ARNOLD ENERGY CENTER POWER UPRATE REQUEST,
SEPTEMBER 26-27, 2001
ROCKVILLE, MARYLAND
PRESENTATION SCHEDULE
| Contact: | P. Boehnert (301/415-8065) ("pab2@nrc.gov") |
September 26, 2001
| TOPIC | PRESENTER | TIME | ||
|---|---|---|---|---|
| I. | Opening Remarks | G. Wallis, Chairman, D. Powers, ACRS Cognizant Member |
1:00 p.m. | |
| II. | Duane Arnold Power Uprate | |||
| A. NMC Presentations (Open/Closed?) |
NMC/GE Nuclear Energy | 1:15 p.m. | ||
| 1. Introduction |
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| 2. Plant Changes to Accommodate Power Uprate |
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| 3. Compliance with Regulatory Requirements | ||||
| - Hardware Modifications - Analyses Performed - Impact on Plant Margins |
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| 4. Response to ACRS Questions: | ||||
| - Plant Operator Training - Stability Monitor/Instability Avoidance - ATWS Event Response for Uprate Conditions - Fuel response for ATWS/Power Excursions - Material Degradation Issues - Impact on Containment Drywell/Wetwell Temperature Limits - Impact of Uprate on Steam Separator/Dryer System |
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| 5. ECCS Analyses | ||||
| - Methodology - Results |
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| 6. PRA Analyses | ||||
| - Analyses Performed/Results (CDF LERF, CDFs & LERFs, Associated Uncertainties(1)) - Evaluation of Missing PRA Elements(2) (e.g., fire, seismic, shutdown risk) |
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| 7. Resolution of Open Issues |
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| 8. Concluding Remarks | ||||
| III. | Recess | 5:00 p.m. | ||
September 27, 2001 | ||||
| IV. | Reconvene | D. Powers, ACRS Cognizant Member |
8:30 a.m. | |
| V. | Duane Arnold Power Uprate (Cont.) |
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| B. NRR Presentations (Open) | NRR | 8:40 a.m. | ||
| 1. Introduction |
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| 2. NRR SER Results/Response to ACRS Questions | ||||
| - PRA Analyses/Evaluation
Of Licensee's PRA Examinations - Audits of Licensee's Code Calculations - Evaluation of ATWS Response - Material Degradation Issues - Impact on Plant Margins |
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| 3. Open Issues |
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| 4. Concluding Remarks |
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| C. Subcommittee Caucus (Open) | 11:45 a.m. | |||
| 1. Comments on Meeting Presentations |
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| 2. Follow-on Actions |
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| 3. Decision to Bring Review to
ACRS |
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| VI. | Adjourn | 12:00 p.m. | ||
1. If uncertainty evaluations not performed, provide a qualitative discussion of this matter.
2. If quantitative analyses not available, provide rigorous qualitative arguments.
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